CN102745304A - Ship with knuckle line and internal rotational fin tail - Google Patents
Ship with knuckle line and internal rotational fin tail Download PDFInfo
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- CN102745304A CN102745304A CN2012102474041A CN201210247404A CN102745304A CN 102745304 A CN102745304 A CN 102745304A CN 2012102474041 A CN2012102474041 A CN 2012102474041A CN 201210247404 A CN201210247404 A CN 201210247404A CN 102745304 A CN102745304 A CN 102745304A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention discloses a ship with a knuckle line and an internal rotational fin tail, and belongs to the technical field of ships. The ship comprises a propeller, and the knuckle line is arranged on the basis of a ship with an internal rotation fin tail and positioned on the outer side of a shaft of the propeller along the length direction of the ship. The ship has the advantages that longitudinal flow and lateral flow can be guided, and a flow regulating effect can be achieved.
Description
Technical field
The invention belongs to technical field of ships, be specifically related to a kind of knuckle line style inward turning fin tail ship type.
Background technology
Ship shape lines is of a great variety; The afterbody line style that singly is applicable to r Zweier is just too numerous to enumerate, and overall the conclusion gets up to mainly contain plain shaft support r Zweier type, two ball tail ship type, split stern hull form, double tail fins ship type and two inward turning fin tail ship type (being whirlpool tail ship type) five big classes.Their characteristics embody respectively as follows:
(1) plain shaft support r Zweier type
Line style is simple, easily manufactured, wetted surface area is little, the bare hull resistance is lower, but exist wake inadequately evenly, hull efficiency and the big shortcomings of appendage drag such as propulsion coefficient is low, bracing strut;
(2) two ball tail ship types
Obviously weaken in hull bilge whirlpool, and viscosity drag reduces, wake fraction increase and more wake be evenly distributed, hull efficiency improves with propulsion coefficient, and can reduce the screw propeller that causes because of wake is inhomogeneous and vibrate;
(3) split stern hull form, double tail fins ship type:
Preswirl strengthens, and hull efficiency and propulsion coefficient obviously improve, and total drag increases little or do not increase;
(4) inward turning fin tail ship type:
Used whirlpool groove tail technology, made incoming flow under the inducing action of whirlpool groove, form one stronger preliminary election in screw propeller the place ahead and flow, its hand of rotation is outside; Blade is arranged to the direction rotation opposite with preswirl, and promptly inward turning screw is so eliminated wake flow and is rotatablely moved; Reduce degradation of energy, reaction fin or similar to the mechanism of commentaries on classics oar improves propulsion of ship efficient before this hydrodynamics mechanism and the oar; Mainly be to have increased axially to induce efficient, be commonly called as anti-oar effect.Two inward turning fin tail ship types can hold the screw propeller of large radius-depth than (diameter of propeller/boats and ships tail drinking water), have improved the spacious water efficient of screw propeller, are equal to the effect of tunnel tail.Two inward turning fin tail ship types also are similar to two ball tail ship types, and increase of stern wake mark and wake are evenly distributed, and have improved hull efficiency, reduce the screw propeller vibration.
More than in five types of ship types, preceding four types all exist the footpath and are limited in the defective about 0.7 than design parameters deeply, will cause that comparatively violent screw propeller pulsating pressure causes the high vibration of bottom plank above the screw propeller if increase their oar footpath thereby this is.Because this defect influence simultaneously in order to seek the better fit of ship, machine, oar, has limited common double oar oceangoing ship significantly and has used big main engine power, king bolt oar diameter Design and Development direction.
And inward turning fin tail ship type relies on its distinctive similar half conduit effect and the tail effect of similar tunnel, successful will be directly dark than scope of design extend between 0.7 to 1.4, and can keep less hull pulsating pressure.Compare with other r Zweier types of same scale, can the principle of design that guarantees ship, machine, oar better fit use down more high-performance marine main engine and more the diameter of propeller of large scale become the sharpest edges of pair inward turning fin tail ship types.
Ship resistance and performance can comprise the problem of two aspects, i.e. ship resistance and propulsion of ship.Common double tail fin ship type obtains the outstanding propulsion of ship efficient except that the screw propeller that has adopted the large radius-depth ratio and preswirl mechanism, also adopts vertical stream ship type Design Mechanism to reduce ship resistance as far as possible, thereby comprehensively obtains excellent ship resistance and performance ability.So-called vertical stream ship type is a relative concept to effluent ship type.Generally speaking; After ship type principal parameter is confirmed, different hull form designs, its hull resistance value also can be far apart; This is because different hull forms can make actual flow come in every shape through the streamline of hull surface, thereby influences the cause of the actual smooth-going degree of these space streamlines.Usually, the boats and ships that flow through main pile warp hull two topsides of current along the waterline direction call effluent ship type, mainly call vertical stream ship type to current from the hull bottom boats and ships that direction flows through along the elevation profile.Produce wave making resistance owing to rising wave at the water surface easily in the effluent process, so vertical stream ship type is more much lower than the ship resistance of effluent ship type usually.Yet; Vertical preferably stream ship type applies to absorb water more shallow cruiseway more; Because it is bigger than more with drinking water to work as the beam; Be beneficial to more current more and carry out vertically flowing along hull bottom, common double tail fin ship type uses this principle when improving the hull propulsion quality, to improve just or keeps outstanding ship resistance performance.Usually, the drinking water of the vertical stream of this type ship type is bigger than normal than often, and as greater than 6, the beam, the draft figures of common double tail fin ship type are chosen and also followed this rule.But its drinking water ratio of common double tail fin ship type far reaches about 9, so the vertical zone broad relatively that flows in its stage casing, bottom can guarantee that so on the one hand most current flow to afterbody from stem smoothly through the vertical section that flows of bottom of ship, make ship resistance drop to minimum; Can guarantee that on the other hand the sufficient water yield forms the preceding preswirl of oar, makes propulsion of ship efficient reach maximum.
For most of ships that transport, because its drauht of needs of cargo loading usually can be bigger, to the requirement of boats and ships length and width yardstick, the value of the breadth draught ratio of such boats and ships is less than normal usually in conjunction with deepwater port.If drinking water is directly applied mechanically common double tail fin ship type design concept than boats and ships less than normal, the regional relative narrower of the vertical stream in its stage casing, bottom, thus can't make the improvement degree of ship resistance and propulsion coefficient reach best.Model experiment proves; If be applied directly to common double tail fin ship type on the boats and ships of such yardstick; The phenomenon that ship resistance even occur sharply increases when propulsion of ship efficient can occur and make moderate progress; Often the increase degree of ship resistance has surpassed the improvement degree of propulsion quality, thereby causes ship resistance and performance not ideal enough.From the hydrodynamics angle analysis, this phenomenon is because the vertical stream of above analysis causes inadequately on the one hand, is because the complex flowfield of this ship type propeller axis place elevation profile to side of a ship regions on the other hand.Because ship dimensions is confirmed; So can't improve vertical stream defect of insufficient, so formation mechanism that just must be through anatomizing the rear lateral complex flowfield, take effective rectification measure to reach the purpose of the outstanding double tail fins ship of the boats and ships rational Application type of such yardstick to this zone.
Summary of the invention
The objective of the invention is to address the above problem and a kind of knuckle line style inward turning fin tail ship type is provided.This ship type is on the basis of the ship type of inward turning fin tail, to be provided with a knuckle line in the double tail fins ship type, makes this ship type play guiding function to vertical stream and effluent, reach rectification effect.
The technical scheme that the present invention adopted is:
A kind of knuckle line style inward turning fin tail ship type comprises screw propeller, and said knuckle line style inward turning fin tail ship type is on the basis of the ship type of inward turning fin tail, a knuckle line to be set, the position of said knuckle line in the axle outside of said screw propeller along captain's direction.
Further, groove tail bench section, whirlpool form is adopted in the inboard of said screw propeller.
Preferably, the footpath of said knuckle line style inward turning fin tail ship type is deeply than being 0.7～1.5.
Further, said knuckle line style inward turning fin tail ship type is specially adapted to absorb water the boats and ships than little.
The present invention has the following advantages:
Ship type of the present invention is that inward turning fin tail ship type and double tail fins ship type are combined; On the basis of inward turning fin tail ship type, be provided with a knuckle line in the double tail fins ship type; Make this ship type play guiding function, reach rectification effect to vertical stream and effluent; Maximum possible make hull afterbody vertical and horizontal streamline smooth and easy, lower hull resistance, solved the bigger practical problems of little beam draft ratio yardstick resistance that boats and ships occur.The footpath of ship type of the present invention than being 0.7～1.5, deeply than down, does not occur emptying phenomenon in this footpath deeply, and normal navigation does not have any impact to boats and ships.While ship type of the present invention is when guaranteeing quick performance, and is also energy-conservation more than 20% aspect the rapidity joint.
Ship type of the present invention comprises the ship type of inward turning fin tail, makes its bench section form that has similar pair of ball tail make that the preceding wake field distribution of screw propeller is even, thus the stressed in normal operation vibration that evenly reduces the rotation of oar axle of screw propeller; On the other hand, because the injection effect of its similar half conduit in screw propeller top effectively reduces screw propeller top disturbance force, the damping noise reduction effect obviously and effectively guarantees the hull structure strength at repeated alternation.Prove that through basin test inward turning fin tail ship type has very outstanding traveling comfort, reliability.As far as ship resistance and performance; The present invention is based on inward turning fin tail technology; Adopt groove tail bench section, whirlpool design form in the screw propeller inside region; Thereby effectively improve propeller wake mark and screw propeller relative rotative efficiency, make open propeller efficiency increase because inward turning fin tail can hold the characteristic of larger diameter screw propeller simultaneously, the final propulsion of ship efficient that effectively improves.Ship type of the present invention also comprises the ship type of inward turning fin tail, makes this ship type have quick performance.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
A kind of knuckle line style inward turning fin tail ship type drawing in side sectional elevation that Fig. 1 provides for the embodiment of the invention.
The specific embodiment
With reference to Fig. 1, a kind of knuckle line style inward turning fin tail ship type comprises screw propeller.Knuckle line style inward turning fin tail ship type is on the basis of the ship type of inward turning fin tail, a knuckle line 1 to be set, the position of knuckle line 1 said screw propeller the axle 2 outsides along captain's direction.
Present embodiment ship type adopts the cross-sectional form of whirlpool groove tail of common inward turning fin tail ship type in the screw propeller inside region, uses for reference the cross-sectional form of knuckle line that adopts double tail fins ship type in the screw propeller exterior lateral area.On the one hand; Through at knuckle line 1 of screw propeller arranged outside; The two-way curvature body lines of complicacy is transformed into the knuckle line body lines of two sections unidirectional curvatures that are boundary, thereby plays guiding function, reach rectification effect vertical stream in this zone and effluent, maximum possible make hull afterbody vertical and horizontal streamline smooth and easy; Lower hull resistance, solved the bigger practical problems of little beam draft ratio yardstick resistance that boats and ships occur; On the other hand; In inboard groove tail bench section, the whirlpool form that adopts of screw propeller; With the effect of wake uniformization improve hull efficiency, with anti-oar effect improve the relative rotative efficiency of screw propeller, being suitable for the spacious water efficient that the major diameter screw propeller improves screw propeller, thereby comprehensively improve propulsion of ship efficient.More than improve ship resistance and performance jointly from ship resistance and propulsion of ship two aspects.Find through tank test, use knuckle inward turning fin tail technology and keeping cooresponding outstanding level aspect the propulsion of ship efficient, reach more than 15% and reduce resistance at knuckle inward turning fin tail aspect the ship resistance than using common inward turning fin tail technology.
The ship type of present embodiment is as the basis with inward turning fin tail ship type; Inward turning fin tail ship type is as far as the boats and ships traveling comfort; On the one hand; Because having the bench section form of similar pair of ball tail, inward turning fin tail makes that the preceding wake field distribution of screw propeller is even, thus the stressed in normal operation vibration that evenly reduces the rotation of oar axle of screw propeller; On the other hand, because the injection effect of its similar half conduit in screw propeller top effectively reduces screw propeller top disturbance force, the damping noise reduction effect obviously and effectively guarantees the hull structure strength at repeated alternation.Prove that through basin test inward turning fin tail ship type has very outstanding traveling comfort, reliability.As far as ship resistance and performance; The ship type of present embodiment is based on inward turning fin tail technology; Adopt groove tail bench section, whirlpool design form in the screw propeller inside region; Thereby effectively improve propeller wake mark and screw propeller relative rotative efficiency, make open propeller efficiency increase because inward turning fin tail can hold the characteristic of larger diameter screw propeller simultaneously, the final propulsion of ship efficient that effectively improves.Find through tank test; Use inward turning fin tail technology than using the double tail fins technology in the income that has 20% aspect the propulsion of ship efficient; But increasing more than 20% aspect the ship resistance, the rapidity of such yardstick boats and ships inward turning fin tail ship type that comprehensively gets off is slightly poorer than double tail fins ship type.
Knuckle line 1 is an important feature of two fin tail ship types, and present embodiment ship type comprises fin tail ship type.As far as double tail fins ship type, tail fin body and the type of attachment of main body can be divided into smooth curve and be connected with knuckle line and be connected.Through the campaign of double tail fins ship type is discovered, the ship resistance of knuckle line 1 type of attachment double tail fins ship type connects much little than smooth curve.The ships that transport less than normal as far as breadth draught ratio mainly be made up of jointly vertical stream partial sum effluent part because the propeller axis that the yardstick factor causes belongs to the complex flowfield of elevation profile to boats and ships side of a ship regions, and the two proportion is suitable.Too much influence can't be caused to ship resistance in vertical flow field and effluent field itself; But the current of two kinds of different shapes occur at the same area simultaneously, combined action; Will cause the rapid increase of ship resistance by mutual interference between the two and caused eddy current degradation of energy, thereby obviously reduce ship resistance and performance.Research experience and inspiration in view of double tail fins ship type; Present embodiment ship type is at axle 2 exterior lateral area settings knuckle line shown in figure one of its screw propeller; The vertically mobile of this zone water body played guiding function with transverse flow; Reduce the interference effect vertical, that crossing current is moving, make current smooth and easy, thereby reach the effect that reduces ship resistance.
To, circumferential wake distribution appropriate design screw propeller,,, propulsion coefficient need coordinate the relation between propeller speed and the engine speed when effectively improving according to the oar front axle because the characteristics of major diameter screw propeller make propeller speed descend.Recently realize the transmission between main frame and the screw propeller through selecting more excellent gear case to slow down, reach the target of machine, oar better fit, the designing requirement of satisfy energy-saving and emission-reduction, expanding main engine power and diameter of propeller field of application.Reach a conclusion through Data Comparison Analysis, present embodiment ship type is than using the double tail fins technology energy-conservation more than 20% aspect the ship resistance and performance.
The footpath of present embodiment ship type is dark in being 0.7～1.5, and the best is 1.3.In the design process of common ship type; For guaranteeing that boats and ships the blade leaving water do not occur under the screw propeller normal working and are exposed to airborne phenomenon in underloading or part cargo shipment navigation; And in fully loaded voyage, be unlikely to occur bigger propeller exciting force; Ship type design-calculated footpath is taken as about 0.7 than (ratio of diameter of propeller and designed draft) deeply usually, generally all is not more than 1.So common ship type needs in boats and ships afterbody ballast chamber, to load a considerable amount of ballast waters in the operational configuration of ballast or part cargo shipment, to satisfy the method for ship floating condition requirement.Obtain through experiment, the excessive use of ballast water for ship will bring the unnecessary boats and ships degradation of energy and the water pollution of ballast.The inward turning fin tail ship type that present embodiment ship type is introduced possesses the engineering capabilities that solves boats and ships Life cycle unballast shipwreck topic fully.On the one hand; Footpath through can confirm present embodiment ship type to the observation of this ship pattern type test is dark in getting about 1.3; Even blade surfaces above screw propeller under the boats and ships static state under the operating mode of underloading navigation and unballast water; And after ship's navigation is got up since the distinctive tunnel effect of this ship type and screw propeller rotate formed inducing action and make water body be full of the whole card of screw propeller naturally and the blade emptying phenomenon can not occur, thereby effectively protect screw propeller.On the other hand, from the hydrodynamic force Analysis on Mechanism, since the distinctive similar half conduit effect of present embodiment ship type, effective helix angle oar top disturbance force, and the damping noise reduction effect is obvious.So present embodiment ship type can realize boats and ships Life cycle unballast water fully.Test shows that present embodiment ship type is deeply in proper working order than reaching in 1.3 the test condition screw propeller in the footpath, emptying phenomenon do not occur, and normal navigation does not have any impact to boats and ships.
This present embodiment ship type is that inward turning fin tail ship type and double tail fins ship type are combined; On the basis of inward turning fin tail ship type, be provided with a knuckle line in the double tail fins ship type; Make this ship type play guiding function, reach rectification effect to vertical stream and effluent; Maximum possible make hull afterbody vertical and horizontal streamline smooth and easy, lower hull resistance, solved the bigger practical problems of little beam draft ratio yardstick resistance that boats and ships occur.The footpath of this ship type is dark emptying phenomenon not occur than being 0.7～1.5, and normal navigation does not have any impact to boats and ships.
Present embodiment ship type comprises the ship type of inward turning fin tail, and the bench section form that makes present embodiment ship type have similar pair of ball tail makes that the preceding wake field distribution of screw propeller is even, thus the stressed in normal operation vibration that evenly reduces the rotation of oar axle of screw propeller; On the other hand, because the injection effect of its similar half conduit in screw propeller top effectively reduces screw propeller top disturbance force, the damping noise reduction effect obviously and effectively guarantees the hull structure strength at repeated alternation.Prove that through basin test inward turning fin tail ship type has very outstanding traveling comfort, reliability.As far as ship resistance and performance; The present invention is based on inward turning fin tail technology; Adopt groove tail bench section, whirlpool design form in the screw propeller inside region, thereby effectively improve propeller wake mark and screw propeller relative rotative efficiency, make open propeller efficiency increase because inward turning fin tail can hold the characteristic of larger diameter screw propeller simultaneously; The final propulsion of ship efficient that effectively improves, inward turning fin tail has bigger in propulsion coefficient simultaneously.Present embodiment ship type also comprises the ship type of inward turning fin tail, makes this ship type have quick performance.
It should be noted last that; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. knuckle line style inward turning fin tail ship type; Comprise screw propeller; It is characterized in that said knuckle line style inward turning fin tail ship type is on the basis of the ship type of inward turning fin tail, a knuckle line to be set, the position of said knuckle line in the axle outside of said screw propeller along captain's direction.
2. knuckle line style inward turning fin tail ship type according to claim 1 is characterized in that, groove tail bench section, whirlpool form is adopted in the inboard of said screw propeller.
3. knuckle line style inward turning fin tail ship type according to claim 1 is characterized in that, the footpath of said knuckle line style inward turning fin tail ship type is deeply than being 0.7～1.5.
4. according to each described knuckle line style inward turning fin tail ship type of claim 1 to 3, it is characterized in that said knuckle line style inward turning fin tail ship type is specially adapted to absorb water the boats and ships than little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102474041A CN102745304A (en) | 2012-07-17 | 2012-07-17 | Ship with knuckle line and internal rotational fin tail |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102474041A CN102745304A (en) | 2012-07-17 | 2012-07-17 | Ship with knuckle line and internal rotational fin tail |
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| CN2012102474041A Pending CN102745304A (en) | 2012-07-17 | 2012-07-17 | Ship with knuckle line and internal rotational fin tail |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192947A (en) * | 2013-03-29 | 2013-07-10 | 武汉武船海洋工程船舶设计有限公司 | Three-stern and three-screw mono-hull high-speed ship |
| CN104401475A (en) * | 2014-11-25 | 2015-03-11 | 上海船舶研究设计院 | Structure in combination of double vortex tail fins and tail shaft system of twin-propeller ship |
| CN106240736A (en) * | 2016-08-24 | 2016-12-21 | 广东新船重工有限公司 | A kind of roomy light-draft boats and ships |
| CN106338432A (en) * | 2016-09-28 | 2017-01-18 | 重庆圣巴巴拉实业有限公司 | Hub clamping device, adopting steering knuckle to rigidly fix hub, of hub rotary bending tester |
| CN106546494A (en) * | 2016-09-28 | 2017-03-29 | 重庆圣巴巴拉实业有限公司 | Automotive hub rotary bending testing machine |
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| CN201300963Y (en) * | 2008-10-31 | 2009-09-02 | 武昌船舶重工有限责任公司 | Bulbous bow twin-tail fin stern ship |
| CN102490860A (en) * | 2011-12-21 | 2012-06-13 | 上海船舶研究设计院 | Double-tail-fin self-discharging cement ship |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192947A (en) * | 2013-03-29 | 2013-07-10 | 武汉武船海洋工程船舶设计有限公司 | Three-stern and three-screw mono-hull high-speed ship |
| CN103192947B (en) * | 2013-03-29 | 2016-08-24 | 中船重工（武汉）船舶与海洋工程装备设计有限公司 | A kind of Three-stern and three-screw mono-hull high-speed ship |
| CN104401475A (en) * | 2014-11-25 | 2015-03-11 | 上海船舶研究设计院 | Structure in combination of double vortex tail fins and tail shaft system of twin-propeller ship |
| CN106240736A (en) * | 2016-08-24 | 2016-12-21 | 广东新船重工有限公司 | A kind of roomy light-draft boats and ships |
| CN106338432A (en) * | 2016-09-28 | 2017-01-18 | 重庆圣巴巴拉实业有限公司 | Hub clamping device, adopting steering knuckle to rigidly fix hub, of hub rotary bending tester |
| CN106546494A (en) * | 2016-09-28 | 2017-03-29 | 重庆圣巴巴拉实业有限公司 | Automotive hub rotary bending testing machine |
| CN106546494B (en) * | 2016-09-28 | 2023-05-19 | 重庆圣巴巴拉实业有限公司 | Automobile hub rotary bending testing machine |
| CN106338432B (en) * | 2016-09-28 | 2024-02-20 | 重庆圣巴巴拉实业有限公司 | Hub clamping device of steering knuckle rigid fixed hub rotary bending testing machine |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Jun Inventor after: Peng Biye Inventor after: Fan Wei Inventor after: Wang Xiaohong Inventor after: Shao Hua Inventor before: Yan Jun Inventor before: Peng Biye Inventor before: Fan Wei Inventor before: Wang Xiaohong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YAN JUN PENG BIYE FAN WEI WANG XIAOHONG TO: YAN JUN PENG BIYE FAN WEI WANGXIAOHONG SHAO HUA |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 430060 Zhang Zhidong Road, Wuhan, Hubei, No. 2, No. Applicant after: China shipbuilding (Wuhan) Marine & Offshore Engineering Equipment Design Co., Ltd. Address before: 430060 Zhang Zhidong Road, Wuhan, Hubei, No. 2, No. Applicant before: Wuhan Wuchuan Ocean Engineering Ship Design Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WUHAN WUCHUAN OCEAN ENGINEERING SHIP DESIGN CO., LTD. TO: CSIC UHAN HIPAND OCEAN ENGINEERING EQUIPMENT DESIGN CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121024 |